Can you help me with this problem You find out that the average 10th g


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Can you help me with this problem You find out that the average 10th grade math score for Section 6 of the local high school

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Can you help me with this problem You find out that the average 10th

grade math score, for Section 6 of the local high school, is 87 for the 25 students in the class. The average test score for all 10th grade math students across the state is 85 for 1,800 students. The standard deviation for the state is 3.8.


''What z score that calculate''?


''What does this mean about the probability of this test score difference occurring by chance''?'' Is it less than 0.05''

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